I've been working on modifying Doodle for my guild to add a few features, that we thought would be useful. Unfortunately my decidedly remedial abilities with LUA has made hard work of the processes.
Other than making the Doodle window square to make the production of backgrounds easier, the main thing I've added is a button that inserts the name of everyone in the raid - colour coded by class. I've done a background for Gruul and everyone knowing where they should be was very helpful (cleared Gruul's lair on our third visit /cheer)
If anyone would be interested (especially Nymbia) I could post what I've added - It would be helpful if someone who knows what there doing could have a look at it for me as I'm sure its both inefficient & probably just the wrong way of doing things :P
I too have recently discovered this addon and I am having the same issue a previous poster commented on where I cannot get any custom backgrounds to display expect the Pencil. Not even the Blade's Edge Arena or Nagrand Arena backgrounds. They simply show up as empty backgrounds.
1) The last actual update for Doodle was in July of last year. First, this means it's not currently being maintained by its author. Second, if you read the commit message for this update:
r44480 | nymbia | 2007-07-22 02:23:33 -0400 (Sun, 22 Jul 2007) | 2 lines
- Add background textures for blade's edge and nagrand arenas. They don't work yet.
Note the "They don't work yet." part.
2) If you're adding custom textures by editing the Lua as described on page 1 of this thread, and they're not showing up, you have an error in your texture path.
I believe the problem with those two images is just down to the fact that they are the wrong shape, I've not looked in a while but I seem to remember images needing to be square and being 2 to the power of something in size (words fail me, there's surely a better way to describe that) so 128x128 256x256 512x512.........
Its rather a shame this addon hasn't been more popular, Ive always found it very helpful.